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- Prof. Ho-Young Kwak -

"Great questions are not created, but exist immanently in nature. Immanent questions and answers are found occasionally only by people who have been trying hard to do research during their whole life with sharp insight, passion, and patience.”

PUBLICATIONS

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* co-first / __ (co)-corresponding authors

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2017~present @ Hanyang University

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  1. M Kim, E. Lee, D. H. Kim and R. Kwak, "Decoupled rolling, sliding and sticking of a viscoplastic drop on a superhydrophobic surface", Journal of Fluid Mechanics, 2021, 908, A41 (link)

  2. J. Kim*, S. Kim* and R. Kwak, "Controlling ion transport with pattern structures on ion exchange membranes in electrodialysis", Desalination, 2021, 499, 114801 (link)

  3. D. Kim, S. Ihm, S. Park, Y. Yu and  R. Kwak, "Concentric ion concentration polarization desalination for efficient En-bloc preconcentration and desalination", Desalination, 2021, 499, 114810 (link)

  4. S. Kang and R. Kwak, "Pattern Formation of Three-Dimensional Electroconvection on a Charge Selective Surface", Physical Review Letters, 2020, 124, 154502 (link) 

  5. S. Park and R. Kwak, "Microscale electrodeionization: In situ concentration profiling and flow visualization", Water Research, 2020, 170, 115310

  6. S. J. Lee, J. Y. Kang, W. Choi and R. Kwak, "Simultaneous Electric Production and Sizing of Emulsion Droplets in Microfluidics", Soft Matter, 2020

  7. H. Lee, D. Kim, J. Y. Kang, K. W. Bong, S. H. Lee and R. Kwak, "Nonlinear Dynamics of Ion Concentration Polarization in Capacitive Deionization", Desalination, 2019, 458, 14-24

  8. W. B. Han, R. Kwak, J. Y. Kang and T.S. Kim, “Generation of Solvent‐Free 3D Lipid Structure Arrays on High Aspect Ratio Si Microwell Substrate”, Advanced Material Interfaces, 2019, Vol. 6, 5, 1801554

  9. S.I. Han, Y.K. Yoo, J. Lee, C. Kim, K. Lee, T.H. Lee, H. Kim, D.S. Yoon, K.S. Hwang, R. Kwak and J. H. Lee, "High-ionic-strength Pre-concentration via Ion Concentration Polarization for Blood-based Biofluids", Sensors and Actuators B: Chemical, 2018

  10. R. Kwak and J. Han, "Half-Cell Ion Concentration Polarization on a Nafion-Coated Electrode", the Journal of Physical Chemistry Letters, 2018

2007~2017 @ SNU / MIT / KIST

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  1. R. Kwak, H-H Park, H. Ko, M. Seong, M. Kwak and H-E Jeong, “Partially Cured Photopolymer with Gradient

    Bingham Plastic Behaviors as a Versatile Deformable Material”, ACS Macro Letters, 2017, 6, 561

  2. R. Kwak, V. S. Pham and J. Han, "Sheltering the Perturbed Vortical Layer of Electroconvection under Shear Flow", Journal of Fluid Mechanics, 2017, 813, 799

  3. B. Kim*, S. Choi*, V.S. Pham, R. Kwak, and J. Han, "Energy Efficiency Enhancement of Electrochemical

    Desalination Systems by Local Flow Redistribution optimized for the Asymmetry of Cation/Anion Diffusivity",

    Journal of Membrane Science, 2017, 524, 280

  4. M. Kim, H. Lee, J. Y. Kang, T. S. Kim, and R. Kwak, “Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes for Blocking Propagation of the Polarization Zone”, Journal of Visualized Experiments, 2017, 120, e55313 [Invited]

  5. S. J. Lee, J. Y. Kang, W. Choi, and R. Kwak, "Nanopore Sensing in Aqueous Two-Phase System: Simultaneous Enhancement of Signal and Translocation Time via Conformal Coating", Small, 2017, 13, 1601725 [Inside Front Cover]

  6. B. Kim, R. Kwak, H. J. Kwon, V. S. Pham, M. Kim, B. Al-Anzi, G. Lim and J. Han, "Purification of Ultra-High

    Salinity Water by Multi-Stage Ion Concentration Polarization Desalination", Scientific Reports, 2016, 6, 31850

  7. S.I. Han*, K.S. Hwang*, R. Kwak, and J.H. Lee, "Microfluidic Paper-based Biomolecule Preconcentrator by Ion

    Concentration Polarization", Lab on a Chip, 2016, 16, 2219 [Back Cover]

  8. R. Kwak, V. S. Pham, B. Kim, L. Chen and J. Han, "Enhanced Salt Removal by Unipolar Ion Conduction in Ion

    Concentration Polarization Desalination", Scientific Reports, 2016, 6, 25349

  9. S. Cho, W. Jo, Y. Heo, J. Y. Kang, R. Kwak and J. Park, "Isolation of Extracellular Vesicle from Blood Plasma

    Using Electrophoretic Migration through Porous Membrane", Sensors and Actuators B: Chemical, 2016, 233, 289

  10. S. Hong, R. Kwak, and W. Kim, "Paper-based Flow Fractionation System Applicable to Preconcentration and Field- flow Separation", Analytical Chemistry, 2016, 88, 1682

  11. R. Kwak, J. Y. Kang, and T. S. Kim, "Spatiotemporally Defining Biomolecule Preconcentration by Merging Ion Concentration Polarization", Analytical Chemistry, 2016, 88, 988

  12. R. Kwak, V. S. Pham, K. M. Lim and J. Han, "Shear Flow of an Electrically Charged Fluid by ion Concentration Polarization: Scaling Laws for Electroconvective Vortices", Physical Review Letters, 2013, 110, 114501

  13. R. Kwak, G. Guan, W. K. Peng and J. Han, "Microscale Electrodialysis System: Concentration Profiling and Vortex Visualization", Desalination, 2013, 308, 138–146

  14. S. J. Kim*, S. H. Ko*, R. Kwak, J. D. Posner, K. H. Kang, and J. Han, "Multi-Vortical Flow Inducing Electrokinetic Instability in Ion Concentration Polarization Layer", Nanoscale, 2012, 4, 7406

  15. R. Kwak, S. J. Kim, and J. Han, “Continuous-flow Biomolecule Preconcentration by Ion Concentration Polarization”, Analytical Chemistry, 2011, 83, 7348

  16. P. Kim, R. Kwak, S.H. Lee and K. Y. Suh, "Solvent-Assisted Decal Transfer Lithography by Oxygen Plasma Bonding and Anisotropic Swelling", Advanced Materials, 2010, 22, 2426

  17. S. H. Lee, H. N. Kim, R. K. Kwak, and K. Y. Suh, "Effects of Mold Rising Angle and Polymer Concentration in Solvent-Assisted Molding", Langmuir, 2009, 25, 12024

  18. H. E. Jeong, R. Kwak, A. Khademhosseini, and K. Y. Suh, "UV-assisted Capillary Force Lithography for engineering biomimetic multiscale hierarchical structures: From lotus leaf to gecko foot hairs", Nanoscale 2009, 1, 331, [Invited]

  19. R. Kwak, H. E. Jeong and K. Y. Suh, "Fabrication of Monolithic Bridged Structures by Vacuum-Assisted Capillary Force Lithography", Small, 2009, 5,790 [Front Cover]

  20. H. E. Jeong, R. Kwak, J. K. Kim and K. Y. Suh, "Generation and self-replication of monolithic, dual-scale polymer structures by two-step capillary force lithography", Small 2008, 4, 1913

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